海南槟榔等4种南药农残含量现状研究

Study on the content of organochlorine pesticide residue of Areca catechu, Alpinia oxyphylla, Myristica fragrans and Eugenia caryophyllata

目的利用气相色谱法调查海南主产区槟榔等4种南药10种有机氯农药的含量。方法采用SE-54弹性石英毛细管(30 m×0.32 mm,25 μm)色谱柱,进样口温度为230℃;检测器温度为300℃。不分流进样,程序升温,检测器为63Ni-ECD电子捕获检测器.高纯氮气为载气。结果海南槟榔、益智、肉豆蔻及丁香等4种南药总666、总DDT、五氯硝基苯及艾氏剂的基础含量值分别为9.796,0.201 7,--,4.562 ng·g-1;42.43,29.35,1.902,1.888 ng·g-1;9.260,14.43,8.409,4.961 ng·g-1;17.10,141.7, 27.66,1.115ng·g-1。结论海南槟榔、益智及肉豆蔻3种南药的总DDT、总666、五氯硝基苯及艾氏剂的含量均符合绿色行业标准;海南丁香的总666、五氯硝基苯及艾氏剂3种农残含量符合绿色行业标准;但是,海南丁香总DDT超标;同时发现,海南不同产区同种药材农残含量差异较大。

OBJECTIVE: To investigate the organochlorine pesticide residue in Areca catechu L. ,Alpinia oxyphylla Miq., Myristica fragrans Houtt. and Eugenia caryophyllata Thunb. of Hainan. METHODS: Gas chromatography (GC) with SE-54 flexible quartz capillary (30 m × 0.32 mm, 25 μm) chromatographic column was used. The sample was injected at 230 °C. The detection temperature was at 300 °C. RESULTS: 10 kinds of organochlorine pesticide residue (4 isomers of 666, 4 isomers of DDT, quintozene, drinox) were detected. The basic contents of organochlorine pesticide (666, DDT, quintozene and drinox) residue in Areca catechu L. ,Alpinia oxyphylla Miq., Myristica fragrans Houtt. and Eugenia caryophyllata Thunb. were 9.796, 0.201 7,--, 4.562 ng&middotg -1; 42.43, 29.35, 1.902, 1.888 ng&middotg-1; 9.260, 14.43, 8.409, 4.961 ng&middotg-1, 17.10, 141.7, 27.66, 1.115 ng&middotg-1. CONCLUSION: The organochlorine pesticide residue of Areca catechu L., Alpinia oxyphylla Miq., Myristica fragrans Houtt. and Eugenia caryophyllata Thunb. of Hainan varied greatly in different regions of Hainan. The contents of organochlorine pesticide residue of the four southern herb, except the content of DDT of Eugenia caryophyllata Thunb., meet the green trade standard. It's reasonable that the limts of organochlorine pesticide (666, DDT, quintozene and drinox) residue should be 0.1, 0.1, 0.1 and 0.02 μg&middotg-1 in the four southern herb.